CBS reportedly lost around $40 million per year on "The Late Show with Stephen Colbert," which relied heavily on political commentary over comedy.
https://www.foxnews.com/outkick-analysis/usa-today-calls-stephen-colbert-americas-least-funny-comedian-gallant-comic-avenger
https://www.foxnews.com/outkick-analysis/usa-today-calls-stephen-colbert-americas-least-funny-comedian-gallant-comic-avenger